Improvement in sifters



tldtzt Saitta peut eine.

SANFORD o. BLANDING; or v rNnLANn, new .rn-usar.

Letters Patent No. 110,543, dated December 27, 1870.

1 IMPROVEMENT In s|F TERs.

The Schedule referred to in these Letters Patent azrdrnakngA part of the same.

nished and'forrning a part of the same, isa" true, clear,`

and exact description thereof.

Reference being had to the drawing-f Y 'Figure 1 represents one of -my improved' sitters in. perspective. Y

Figure 2 represents the handled sieve detached;-

Figure 3 represents the interior vof one of the sides 0f the exterior case, for the purpose of exhibiting the bearings on which the 'sieve is sustained and operated.

' A represents the exterior case. It has a cover hinged at one of its sides to the wall'of the case.

B represents a circularheadfon which the case A is mounted.

The head is provided with a dange, b, projecting downward; .This head is, in fact, the usual barrelcover, with a square opening therein corresponding with the interior ofthe case A.

C is the sieve, made inthe usual form,provided with a handle, c, attached to oneA of its ends.

D is one of two pivoted legs attached to the outer sides ofthe sieve; Y

lhese legs are connected by across-bar, (Z, beneath the sieve.

Eis one of two beater-plates placed with relation to the pivoted legs and cross-bar d, on the'under edge of each side of' the sieve, so that when the sieve is'rocked longitudinally upon the pivoted legs the. cross-'bar d shall come in contact with the curved end s of the beater-plates.' v

F represents one of two bearings, which are attached vertically -to the innersurface of each side of the case A. Theymay be described as U-shaped bands,hav

ing flaring sides.

When placed in position, the legs D of the sieve rest: upon the lower portion of the bearings F'. When moved backward and forward there is no friction b etween any of the parts. A vertical chucking mov/e-` ment is effected by the striking of the cross-bar dagainst the beater-plates, and the operation of sifting is rapidly eiected,

It is sometimes desirable that the sieve be used separate from the case and the barrel-head, and then it can 'as well be operated upon the ground as in -the case..

By usingit in connection with the barrel'for sifting ashes or meal, no dust arises t'o inconvenience the operator.

So little longitudinal space is possible, if a sieve be combined'with the cover, that vany of the ordinary -sliding sieves. cannot well be operated. Owing tothe.

vertical cluolging of inyimproved sieve but, slight 1ongitudi-nal movement is requisite.

In the Letters Patent granted me March 1, 1870, I

exhibit and describe a sieve substantially like that `shown in iig. 2, the only addition being in the addition' of the beater-plates.

Vhen constructed without them, I discoveredthat continued use so wore away the bottom edge of the sieve,A that after a while the cross-bar would wedge or bind, so as to require much additional effort to'operate the sieve.

A plain plate-was then proposed, but it was found that its tendency was to strain the several parts and render them liable to speedy wear. The curved'ends were thenadded, so that the blow is received from the c ross-barbefore it can come in contact with' the bottom edge of the sieve, and it has proven of great practical value.

It is evident that the legs D may be connected lor not, as may be desired, for operation within the-case, as the bearings F will always serve to keepv them in proper relative position. For use, however, out of the case, the legs will operate-better if connected.

Should they be mounted at their upperends upon a cross-bar extending across the sieve, it will only b e requisite that the bearings F have lateral projections for coming in Contact with the edges of the legs.

Havingthus described my invention,

I claim as new and desire to secure by Letters Patent l.l The cover B, case A, and pivoted handled sieve C, in combination, constructed and operating substan-A tially as described.;4

2. In combination with the handled sieve O and pivoted legs Y D, the beater-plates E, with curved ends, constructed and operating substantially as described. Y

. v SANFORD O. BLANDING.

Witnesses 4 W. M. GWYnnnTH, AJenin L. BURK. 

